The Swiss airforce had used to have office hours from 8-12 and 1:30-5:00 Monday through Friday. If an incident occurred outside of those hours, they relied on France to deal with it, although the French didn't have the authority to shoot things down. This changed after a hijacker rudely diverted a 2014 Ethiopian Airlines flight to Geneva outside of their hours. They're planning to have 24/365 readiness by 2020, but for now are still only managing 6:00 AM to 10:00 PM.